LBCS Structure Dimension with Descriptions

Structure is one of five dimensions in LBCS. Each dimension is an attribute that takes the appropriate four-digit code.

Code

Structures with Descriptions

Color

1000 Residential buildings #FFFF00
   

This is a catch-all category for all buildings built for residential purposes.

 

1100

 

Single-family buildings

 
   

Also includes any single-unit structure for habitation. The emphasis here is "single" and not "family." Includes split-level homes, linked group (houses that share foundations), manufactured homes, etc.

 

1110

   

Detached units

 
     

Standard single-family residential structures.

 

1120

   

Attached units

 
     

Usually two or more dwelling units side-by-side sharing one roof, but each unit has a separate front and rear access.

 

1121

     

Duplex structures

 
       

Generally a two-unit building that is divided horizontally, and each unit has a separate entrance from the outside or through a common vestibule. For semi-detached, double-duplexes, quadraplexes, maisonettes, etc., count the number of units in the structure and use the appropriate multifamily structure category. For applications that need to track the precise configuration, use additional fields or attributes in the land-use database.

 

1122

     

Zero lot line, row houses, etc.

 
       

This was a traditional planning category that is fast falling out of use. Many manufactured home developments are configured as zero lot line developments, townhouses are a form of zero lot line housing, and to further confuse the usage, former row houses are also used as barracks, group housing, or farm housing. Avoid this category if possible, but it is provided here for compatibility with many existing land-use databases that have this description.

 

1130

   

Accessory units

 
     

Use this category for an accessory unit, which is structurally separate and distinct from the main structure. An accessory unit is a second dwelling unit (structure-wise) that is added to an existing lot for use as a complete and independent facility. Note that not all accessory units have residential activities. For an accessory use (not structure) that is part of the main structure or not incidental to the primary use, classification options vary. Such a unit is also known as a "granny flat." See the working paper on Mixed Uses and Accessory Uses for a discussion of the full range of issues associated with accessory uses and their implications for land-use data classifications.

 

1140

   

Townhouses

 
     

A type of structure that has three or more separate dwelling units divided vertically, and each unit has separate entrances to a front and rear yard.

 

1150

   

Manufactured housing

 
     

Also commonly referred to as factory-built housing, which includes modular, mobile homes, and manufactured homes. The differences are subtle but, if a land-use application needs these finer gradations, create another attribute table to track the various kinds of factory-built housing.

 

1200

 

Multifamily structures

 
   

The following categories refer to the number of units and not by the number of floors or stories in the structure. For counting the number of households, have a separate field in the land-use database that lists the number of actual households in the building. For tracking the number of floors in a structure, use another attribute field. In short, this dimension is only for tracking the total number of units in a structure to get an indication of how big the structure is.

 

1202

     

Two Units

 

1203

     

Three Units

 

1204

     

Four Units

 

1205

     

Five Units

 

1206

     

Six Units

 

1207

     

Seven Units

 

1208

     

Eight Units

 

1209

     

Nine Units

 

1210

   

Ten Units

 
     

When using a three-level coding scheme, apply this category to mean "up to ten units."

 

1211

     

Eleven Units

 

1212

     

Twelve Units

 

1213

     

Thirteen Units

 

1214

     

Fourteen Units

 

1215

     

Fifteen Units

 

1216

     

Sixteen Units

 

1217

     

Seventeen Units

 

1218

     

Eighteen Units

 

1219

     

Nineteen Units

 

1220

   

Twenty Units

 
     

When using a three-level coding scheme, apply this category to mean "between ten and twenty units."

 

1221

     

Twenty-one Units

 

1222

     

Twenty-two Units

 

1223

     

Twenty-three Units

 

1224

     

Twenty-four Units

 

1225

     

Twenty-five Units

 

1226

     

Twenty-six Units

 

1227

     

Twenty-seven Units

 

1228

     

Twenty-eight Units

 

1229

     

Twenty-nine Units

 

1230

   

Thirty Units

 
     

When using a three-level coding scheme, apply this category to mean "between twenty and thirty units."

 

1231

     

Thirty-one Units

 

1232

     

Thirty-two Units

 

1233

     

Thirty-three Units

 

1234

     

Thirty-four Units

 

1235

     

Thirty-five Units

 

1236

     

Thirty-six Units

 

1237

     

Thirty-seven Units

 

1238

     

Thirty-eight Units

 

1239

     

Thirty-nine Units

 

1240

   

Forty Units

 
     

When using a three-level coding scheme, apply this category to mean "between thirty and forty units."

 

1241

     

Forty-one Units

 

1242

     

Forty-two Units

 

1243

     

Forty-three Units

 

1244

     

Forty-four Units

 

1245

     

Forty-five Units

 

1246

     

Forty-six Units

 

1247

     

Forty-seven Units

 

1248

     

Forty-eight Units

 

1249

     

Forty-nine Units

 

1250

   

Fifty Units

 
     

When using a three-level coding scheme, apply this category to mean "between forty and fifty units."

 

1251

     

Fifty-one Units

 

1252

     

Fifty-two Units

 

1253

     

Fifty-three Units

 

1254

     

Fifty-four Units

 

1255

     

Fifty-five Units

 

1256

     

Fifty-six Units

 

1257

     

Fifty-seven Units

 

1258

     

Fifty-eight Units

 

1259

     

Fifty-nine Units

 

1260

   

Sixty Units

 
     

When using a three-level coding scheme, apply this category to mean "between fifty and sixty units."

 

1261

     

Sixty-one Units

 

1262

     

Sixty-two Units

 

1263

     

Sixty-three Units

 

1264

     

Sixty-four Units

 

1265

     

Sixty-five Units

 

1266

     

Sixty-six Units

 

1267

     

Sixty-seven Units

 

1268

     

Sixty-eight Units

 

1269

     

Sixty-nine Units

 

1270

   

Seventy Units

 
     

When using a three-level coding scheme, apply this category to mean "between sixty and seventy units."

 

1271

     

Seventy-one Units

 

1272

     

Seventy-two Units

 

1273

     

Seventy-three Units

 

1274

     

Seventy-four Units

 

1275

     

Seventy-five Units

 

1276

     

Seventy-six Units

 

1277

     

Seventy-seven Units

 

1278

     

Seventy-eight Units

 

1279

     

Seventy-nine Units

 

1280

   

Eighty Units

 
     

When using a three-level coding scheme, apply this category to mean "between seventy and eighty units."

 

1281

     

Eighty-one Units

 

1282

     

Eighty-two Units

 

1283

     

Eighty-three Units

 

1284

     

Eighty-four Units

 

1285

     

Eighty-five Units

 

1286

     

Eighty-six Units

 

1287

     

Eighty-seven Units

 

1288

     

Eighty-eight Units

 

1289

     

Eighty-nine Units

 

1290

   

Ninety Units

 
     

When using a three-level coding scheme, apply this category to mean "more than eighty units."

 

1291

     

Ninety-one Units

 

1292

     

Ninety-two Units

 

1293

     

Ninety-three Units

 

1294

     

Ninety-four Units

 

1295

     

Ninety-five Units

 

1296

     

Ninety-six Units

 

1297

     

Ninety-seven Units

 

1298

     

Ninety-eight Units

 

1299

     

Ninety-nine Units and more

 

1300

 

Other specialized residential structures

 
   

For tracking the number of occupants, guest rooms, or beds, use additional attributes or fields in the land-use database.

 

1310

   

Barracks

 
     

Primarily associated with housing for uniformed services (police, military, etc.). For tracking number of occupants, guest rooms, or beds, use additional attributes or fields in the land-use database.

 

1320

   

Dormitories

 
     

Primarily associated with an institution that provides sleeping units and communal dining facilities. For tracking the number of occupants, guest rooms, or beds, use additional attributes or fields in the land-use database.

 

1330

   

Hotels, motels, and tourist courts

 
     

For tracking the number of occupants, guest rooms, or beds, use additional attributes or fields in the land-use database.

 

1340

   

Single room occupancy units

 
     

Historically, many hotels and motels are converted to SROs. Even new SRO buildings are structurally no different from hotels. But many have small cooking facilities (independent or common) and other amenities not associated with a hotel. SROs may also have building code specifications different from hotels and motels. For tracking the number of occupants, guest rooms, or beds, use additional attributes or fields in the land-use database.

 

1350

   

Temporary structures, tents, etc. for shelter

 
     

For tracking the number of occupants, guest rooms, or beds, use additional attributes or fields in the land-use database.

 

1360

   

Other structurally converted buildings

 
     

This is a catch-all category for all other residential structure types that do not easily classify in any of the other residential categories. For tracking the number of occupants, guest rooms, or beds, use additional attributes or fields in the land-use database.

 
2000 Commercial buildings and other specialized structures #FF0000
   

Use this as a catch-all category when sufficient detail about structure types are not available (for example, when using remotely sensed data).

 

2100

 

Office or bank building

 
   

Buildings constructed for office-type uses. Typically these buildings constitute the majority of nonresidential structures in a community.

 

2110

   

Office building with drive-through facility

 
     

An office building with drive-in windows to serve customers in automobiles.

 

2200

 

Store or shop building

 
   

Most retail stores fall in this category. Use this as a catch-all category when sufficient detail about structure types are not available (for example, when using remotely sensed data).

 

2210

   

Shop or store building with drive-through facility

 
     

A building with drive-in windows to serve customers in automobiles.

 

2220

   

Restaurant building

 
     

Restaurant buildings that serve food for customers for consumption on or off premises. These structures may also be characterized by specialized cooking, serving, and health and hygiene equipment.

 

2230

   

Standalone store or shop building

 
     

A catch-all category for most commercial and retail business structures.

 

2240

   

Department store building

 
     

These buildings are characterized by large commercial spaces for retail or wholesale sales although they may be reconfigured for other uses. Use this category for urban and downtown department stores that look similar to office or standalone store, but have specialized building features (store fronts, display windows, large atriums, etc.).

 

2250

   

Warehouse discount store building

 
     

These structures are primarily warehouse in structural character, but also have other structural features convenient for large discount stores and "big-box retail" establishments.

 

2260

   

Market shops including open markets

 
     

Structures in this category include typical market shops and farmers markets with or without outdoor sales and service areas in single or groups of buildings with stalls for retail or wholesale commercial activities.

 

2270

   

Gasoline station

 
     

Structures that are specialized for selling gasoline with storage tanks, often underground or hidden. They may have bays for car washes. For convenience stores that sell gasoline, use the convenience store category.

 

2280

   

Automobile repair and service structures

 
     

Includes service garages and other structures that have bays for automobile service. These are specialized structures for auto repair and service.

 

2300

 

Office or store building with residence on top

 
   

Use this category for areas that the land-use database is not recording as multiple uses in a structure. Structurally, they may have some unique characteristics. Many planning applications in older neighborhoods can apply this category for large portions of their inventory.

 

2400

 

Office building over storefronts

 
   

This is a catch-all category to differentiate office buildings with street-level retail uses from a purely office building. Structurally, they are similar to a regular office building but vary in their treatment of street-level portion of the structure. Track the establishments in this type of structure by applying the appropriate code(s) from the function dimension.

 

2500

 

Malls, shopping centers, or collection of shops

 
   

Shopping center refers to a group of retail establishments that are located (and sometimes managed) as a single property. Most provide on-site parking, and their size and configuration reflect the kinds of merchandise and trade area characteristics. The two basic structure types are malls and open-air strip centers.

 

2510

   

Neighborhood center (convenience with one or more anchors)

 
     

Usually configured as a straight-line strip with no enclosed walkway or mall area; sometimes a canopy may connect the storefronts.

 

2520

   

Community center (general merchandise with two or more anchors)

 
     

Usually configured as a strip (straight line, "U", or "L" shaped) center. Of all the varieties of shopping centers, these are by far the most common type and are configured in the widest range. Other terms used to describe this type are: discount centers (if anchored by a discount store), or off-price centers (if anchored by an off-price retailer).

 

2530

   

Regional center (enclosed mall with two or more anchors)

 
     

Usually configured as an enclosed mall with an inward orientation of the stores and have common walkways with parking areas around the perimeter of the building. Sizes vary from 400,000 to 800,000 square feet on sites ranging from 40 to 100 acres, and have a 5- to 15-mile primary trade area radius. Typically serves a region with general merchandise in full depth and variety. Apparel stores are usually the anchors. They may be traditional, mass merchant, or discount department variety. Track the establishments in this type of structure by applying the appropriate code(s) from the function dimension.

 

2540

   

Superregional center (similar to regional, but has three or more anchors)

 
     

Usually configured as an enclosed mall and may even have multiple levels. Sizes vary from 800,000 square feet and above on sites ranging from 60 to 120 acres, and have a 5- to 25-mile primary trade area radius. Typically serves the same purpose as a regional center, only with more anchors. Other terms used for this category include "super off-price malls" and "mega mall." Several anchors (three or more) offer more variety and depth of merchandise than a regional center. Track the establishments in this type of structure by applying the appropriate code(s) from the function dimension.

 

2550

   

Fashion/specialty center (higher end, fashion-oriented stores)

 
     

Usually configured as a mall, emphasizing rich decor and landscaping.

Sizes vary from 80,000 to 250,000 square feet on sites ranging from 5 to 25 acres, and have a 5- to 15-mile primary trade area radius.

Typically has upscale shopping. Also known as vertical market center. It need not have an anchor, but if it does, it is usually an apparel shop. Sometimes restaurants and entertainment play the anchor role. Other shops include boutiques and craft shops that offer unique merchandise of high quality and price. Track the establishments in this type of structure by applying the appropriate code(s) from the function dimension.

 

2560

   

Power center (category-dominated anchors with few small tenants)

 
     

Usually configured as a collection of several freestanding anchors and a few, if any, small tenants.

 

2570

   

Theme or festival center (leisure, tourist-oriented, restaurants)

 
     

Mostly located in urban areas and sometimes adapted to historic buildings or other related urban activities nearby. They can also be one component of a large mixed-use project.

 

2580

   

Outlet or discount center (manufacturer outlet stores)

 
     

Strip configuration is the most common format, but others include malls and "village cluster." Many also have outdoor sales areas. Sizes vary from 50,000 to 400,000 square feet on sites ranging from 10 to 50 acres (some may be as big an 100 acres), and have a 25- to 75-mile primary trade area radius.

 

2590

   

Other kinds of shopping centers

 
     

These categories are mainly for those applications that may want further differentiation. Track the establishments in this type of structure by applying the appropriate code(s) from the function dimension.

 

2591

     

Convenience stores or centers

 
       

Usually configured as a stand-alone store from the smallest size to a few thousand square feet of space. It is typically anchored by a mini-mart, gas station, or a 24-hour general store. Track the establishments in this type of structure by applying the appropriate code(s) from the function dimension. For gas stations, use the gasoline service station category.

 

2592

     

Home improvement center

 
       

Structurally, these centers are no different from other types of store buildings. Sometimes, they have outdoor sales or storage of merchandise. Sizes vary from a few hundred to several thousand square feet of enclosed space. Such a center is typically anchored by a hardware, furniture, carpet, or other store specializing in merchandise for home improvement. Track the establishments in this type of structure by applying the appropriate code(s) from the function dimension.

 

2593

     

Car care center

 
       

Structurally, they are similar to other store buildings, but some may include repair garages, car washes, and other similar automobile-specific construction. Typical functions include sales of auto parts, auto repairs, tires, and other auto-related merchandise. Track the establishments in this type of structure by applying the appropriate code(s) from the function dimension.

 

2600

 

Industrial buildings and structures

 
   

Use this as a catch-all category when sufficient detail about structure types are not available (for example, when using remotely sensed data).

 

2610

   

Light industrial structures and facilities

 
     

Many industrial structures were described by their roof design (saw tooth, monitor, etc.). But modern industrial structures may look no different from an office building.

 

2611

     

Loft building

 
       

Multistoried industrial building, often with higher ceilings and wider columns than a comparable office building. They are popular structures for rehab to residential activities. Other rehab adaptations include art galleries, selling books, computer data centers, mail order centers, and general office space.

 

2612

     

Mill-type factory structures

 
       

These are older single or multistory factories, common in many older industrial areas, and supported by large wood beams and columns. They are popular structures for rehab to activities that are not industrial (art galleries, book selling, computer data centers, mail order centers, etc.). For lumber mills, see the agricultural facilities category.

 

2613

     

One-story modern manufacturing plants

 
       

Many newer industrial structures may look and generate impacts like a typical office building, but they rely on special power, water, or waste disposal systems for operations.

 

2614

     

Industrial parks

 
       

Also known as research and development parks, these are one or more buildings used for light industrial activities, often by several independent enterprises, that may share common loading, parking, and business services. Sometimes they are also referred to as business incubators that are similar to a light industrial structure but differ in the duration of tenancy (incubators only lease for a year to two to help a business in its initial development). Industrial malls, structurally, are like business incubators, but without tenancy restrictions.

 

2615

     

Laboratory or specialized industrial facility

 
       

A catch-all category for unique and specialized structures that cannot be easily classified under light industrial structures.

 

2620

   

Heavy industrial structures and facilities

 
     

Typically the largest facilities in a community, these structures house complex operations, some of which might be continuous (operated 24 hours a day, seven days a week). Because these facilities are constructed for specific occupants, they have a high degree of obsolescence. Because the subcategories mirror those used by industrial property appraisers, appraisal data sets may already contain some or all these distinctions.

 

2621

     

Assembly and construction-type plants

 
       

A typical heavy manufacturing facility.

 

2622

     

Process plants (metals, chemicals, etc.)

 
       

Process sometimes also applies to oil refineries, which are categorized separately.

 

2630

   

Oil refinery facility

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

2631

     

Refinery with anchored equipment < 100,000 barrels/day

 

2632

     

Refinery with unanchored equipment < 100,000 barrels/day

 

2633

     

Refinery with anchored equipment > 100,000 barrels/day

 

2634

     

Refinery with unanchored equipment > 100,000 barrels/day

 

2635

     

Refinery pumping plant with anchored equipment

 

2636

     

Refinery pumping plant with unanchored equipment

 

2700

 

Warehouse or storage facility

 
   

Includes public storage, mini-warehouse, mini-storage, and other storage buildings.

 

2710

   

Mini-warehouse

 

2720

   

High-rise mini-warehouse

 

2730

   

Warehouse structure

 
     

Does not include grain elevator structures; they should be classified in agricultural structures.

 

2740

   

Produce warehouse

 
     

Specialized warehouse structures for storing, sorting, repackaging, and, sometimes, wholesale selling of produce.

 

2750

   

Refrigerated warehouse or cold storage

 
     

Large industrialized warehouse structures with specialized cold storage and climate control facilities.

 

2760

   

Large area distribution or transit warehouse

 
     

A subcategory for specifying large warehouse structures that occupy several acres of land.

 

2770

   

Wharf and dock shed

 
     

Waterfront structures for marine and water-based enterprises.

 

2780

   

Tank farms

 
     

Tanks that primarily store fuel, oil, and other liquid products (except water). Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

2781

     

Tank farms with anchored tanks

 

2782

     

Tank farms with unanchored tanks

 
3000 Public assembly structures #A020F0
   

An essential category for many planning applications related to public safety, transportation, and emergency management. The subcategories give a broad variety of public assembly but, if your application needs more precision, create subcategories at the four-digit level under the appropriate broader category.

 

3100

 

Theater

 
   

Theaters are specialized structures for housing dramatic presentations, stage entertainments, motion- picture shows, and similar events that entail mass assembly of people. Most theaters have a stage or a screen for viewing. Some theaters may also have more than one stage for the same viewing area or have multiple screens (one on each wall of the

 

3110

   

Performance theater

 
     

Includes concert halls and other structures with fixed seats arranged on a sloped or stepped floor; may seat 300 to 3,000 people.

 

3120

   

Movie theater

 
     

A movie theater is a specialized theater for showing movies or motion pictures. The primary structural difference between a theater and a movie theater is the projection screen. However, many movie theaters can be easily adapted for stage performances and many stages have folding screens for movie projections. Although screen shapes are mostly rectangular, they come in a variety of shapes. Also, some special-purpose multimedia movie theaters use multiple screens (one on each wall face) or the entire ceiling surface, which are sometimes curved or geodesic in shape. Other terms used to describe these structures include talkies, cinema theaters, and motion pictures. This category also includes cineplexes — complex structures with multiple movie theaters, each theater capable of providing performances independent of the others in the complex. Structurally, theaters in a cineplex are grouped in a manner that allows them to share box or ticket offices, parking facilities, lobby areas, restrooms, concession stands, signs and marquee displays, and other service and maintenance facilities. These structures first started appearing in shopping centers and malls, sometimes integrated with the layout of the mall. Historically, a cineplex meant a theater complex with two or more movie theaters. Popular configurations have nine or twelve theaters. But as structures evolved to accommodate twenty or more theaters, the movie-theater industry started using such terms as multiplex, megaplex, and mega theater to differentiate these newer configurations from older cineplex layout. But there is no clear structural distinction between a cineplex and a megaplex. The distinction between a cineplex and a megaplex has been further blurred because developers sometimes retrofit cineplexes with more screens, often smaller, within the existing structure.

 

3130

   

Amphitheater

 
     

Some can accommodate 15,000 to 20,000 spectators. Modern versions have fixed seating (about 40% of capacity) under a roof (but no walls) and the remaining spectators spread out on sloping lawns. They are very popular for summer music concerts.

 

3140

   

Drive-in theaters

 

3200

 

Indoor games facility

 
   

Many bowling alleys, golf ranges, skating rinks, etc., do not have large spectator seating areas but cater to a large number of people playing in the facility. If necessary, create subcategories here for to differentiate between structures (skating rinks from golf ranges, for example).

 

3300

 

Sports stadium or arena

 
   

Structurally, the main distinction between a stadium and an arena is its size. Stadiums are larger than arenas and seat 40,000 to more than 100,000 spectators; arenas typically seat 8,000 to 22,000. The layout of seating and sight lines in stadiums follow a fixed sport (baseball or football), whereas arenas are designed around the flat, central space whose size is about the size of a basketball court. Arenas also host circuses, ice shows, indoor soccer, hockey games, horse shows, and music concerts. Increasingly, many stadiums, especially domed facilities, are serving arena-like events.

 

3400

 

Exhibition, convention, or conference structure

 
   

A typical exhibition hall facility occupies several city blocks and contains 50,000 to 700,000 square feet of contiguous flat floor space. These halls have high ceilings (25 to 35 feet) and can accommodate a variety of events. Some very large cities (Chicago, for example) have multilevel exhibition halls. Convention structures have both an exhibition hall and a number of meeting rooms. Many also have kitchen and banquet facilities, and an auditorium for special events. Trade shows, public shows, conventions, food functions, receptions, dances, banquets, assemblies, and other activities are typically hosted in these structures. Multipurpose structures have combinations of exhibition, convention, and arena facilities. Some of these may be co-located or created out of a single enclosed space that is reconfigured. This category also includes the horseshoe-shaped auditorium buildings popular in the 1930s and 1940s in many midsize to big cities. These structures have a fixed stage at one end of a flat floor area on which were portable seats on risers and fixed seats on other levels. Multipurpose arenas have since replaced these kinds of structures. Trade centers are not included here. They are usually a special-purpose office building for a specific group of enterprises (brokers, importers, freight forwarders, etc.). These structures belong in the office building category. Merchandise marts also serve the same purpose as trade centers but also have permanent exhibit space (30,000 to 50,000 square feet) with lower ceilings than exhibition halls. These structures serve specific consumer-oriented industries (gifts, apparel, furniture, floor coverings, computers, etc.). Because many cities do not have such facilities, these trade groups often use existing exhibition and convention facilities. In Europe, exhibition hall facilities are also known as congress centers.

 

3500

 

Churches, synagogues, temples, mosques, etc.

 
   

These are specialized religious structures that have pulpits, choirs, musical instruments, such as organs, pianos, and bands, besides large seating areas. Some churches, mosques, temples and other similar religious structures may also have towers (bell towers in churches, minars in mosques, or pagodas in temples). Many religious structures also have classrooms (for Sunday school activities) and residential quarters for one or two families. But the structures are primarily designed for worship and religious congregations. Some modern wedding chapels and structures that accommodate a wide range of religious or social activities are also included here. Architecturally, church buildings have been known as either a schoolhouse, modern, traditional, courthouse, utility, or storefront churches. Except for the storefront variety, all these structures belong in this category. If an application needs to differentiate, use the definitions below to create subcategories. Schoolhouse churches look like one-room schoolhouses, typically frame-built in a rectangular shape with a double row of pews to define the cruciform aisle, and the pulpit centered at the head of the main aisle. Modern churches refer to the explosion of innovative church forms popular with designers after World War II. They take many shapes and sizes with visually striking features (large entrances, long masonry spires, etc.). Traditional churches refer to the standard rectangular plan with steep roof pitches, masonry built, and sometimes having tall bell towers or steeples. Courthouse churches reflect the 1875-1925 American municipal architecture of urban centers. These centers often included the town bank, city hall, post office, and other public uses along with a church building designed to look like the courthouse. Utility churches are buildings with low roofs, often constructed of concrete blocks, sometimes with vinyl sidings, and pointed or spiked steeples, if any. They primarily serve small independent denominations. Not included in this category: Storefront churches refer to a store or a similar structure not typically used for religious activities that is now used as a meeting place for a congregation. Structures adapted for congregations include barns, stores, warehouses, old public buildings, and single-family houses. The structure dimension should classify such structures in the appropriate structure category. Use the activity dimension to specify the religious congregation activities and the function dimension to identify the religious establishment. Megachurches are mostly large structures that can seat several thousand people and have a variety of amenities and host a wide range of activities. The main structure has a stage with a pulpit with arena-style seating. It may also include facilities for teaching, broadcasting, entertaining, and selling gifts, books, and other paraphernalia. They may also include a chapel for weddings and funerals. The architecture and interior design evoke a convention or civic center design and also generate similar traffic and impacts. Such structures should be classified under exhibition and convention center category. Any other facility that has been converted for religious events and congregations (houses, office buildings, community centers, etc.)

 

3600

 

Capitol buildings

 
   

Structures specialized for assembly of elected and other public officials to conduct public discourse. Although the main enclosure is similar to many stepped or raised floor plans of theaters and auditoriums, the overall structural characteristics of a capitol building includes other structures and facilities associated with office-type activities.

 

3700

 

Covered or partially covered atriums and public enclosures

 
   

Often found in downtown locations that provide shelter for large public gatherings and communal activities.

 

3800

 

Other community structures

 
   

This is a catch-all category for all other mass assembly structures, including community halls, reception halls, wedding halls, etc.

 

3900

 

Passenger assembly

 

3910

   

Mixed mode terminal

 

3920

   

Airport terminal

 

3930

   

Bus terminal

 

3940

   

Train station

 
     

Create subcategories if applications require specific train station type (long distance versus transit). But many long distance stations also serve transit and local trains.

 

3950

   

Harbor or port terminal

 
4000 Institutional or community facilities #0000FF
   

Use this as a catch-all category when sufficient detail about structure types are not available (for example, when using remotely sensed data).

 

4100

 

Medical facility

 

4110

   

Hospital building

 

4120

   

Medical clinic building

 

4200

 

School or university buildings

 

4210

   

Grade school

 

4220

   

College or university facility

 

4230

   

Trade or specialty school facility

 

4300

 

Library building

 

4400

 

Museum, exhibition, or similar facility

 

4410

   

Exhibitions and art galleries

 

4420

   

Planetarium

 

4430

   

Aquarium

 

4440

   

Outdoor facility, no major structure

 

4450

   

Zoological parks

 
     

Besides the normal viewing and tourist areas, zoos may also have special structures and enclosures for various zoological and botanical habitats. They also have extensive veterinary and animal services along with associated administration buildings. When a zoo is part of a larger park, for example, a state park, use the appropriate site dimension category to identify such land-use characteristics.

 

4500

 

Public safety-related facility

 

4510

   

Fire and rescue station

 

4520

   

Police station

 

4530

   

Emergency operation center

 

4600

 

Jails, penitentiaries, detention centers, and other correctional facilities

 

4700

 

Cemetery, monument, tombstone, or mausoleum

 
   

The three traditional cemetery types are: the monument cemetery, the lawn cemetery, and the garden memorial park. Each is a distinct facility type, although it may appear that the main difference is in the way the site is developed. The monument cemetery, which evolved from ancient churchyard burial grounds, has stone memorials. The lawn cemetery, features lawns with extensive landscaping and looks like a park, and the memorials are sometimes bronze. They evolved from a need to have wide public acceptance for new cemeteries. The garden memorial park is a logical extension of the lawn cemetery with elaborate sculptures and architectural features that counter the monotonous lawns and memorials. Memorials in all types of cemeteries vary from a simple tombstone to elaborate mausoleums. Many plans recognize the open space quality of cemeteries by placing jogging and bike trails adjacent to such areas. Also, some cemeteries have allowed other recreational uses on unplotted parts of the property. Classify or capture such uses of a cemetery in the activity dimension.

 

4800

 

Funeral homes and cremation facilities

 
   

Land-use plans traditionally treated such facilities as serving a community function. Even though many funeral homes now are for-profit enterprises, for lack of a more suitable category, this facility type remains in the community facility category.

 
5000 Transportation-related facilities #BEBEBE
 

5100

   

Linear or network feature

 
   

Many local land-use databases do not have parcel IDs for road segments, including rights-of-way. A typical community may have as much as 15% of its total land consumed by such linear features. Tracking the total amount of land consumed by such facilities is becoming increasingly critical for answering many planning applications. Even in cases where GIS-based maps ignore roads as a category when mapping, the underlying geometry has polygons assigned to the rights-of-way. This category is a way to assign a structure type for such polygons in the GIS, or for parcels that are road segments in the database. See the LBCS web site for further details about this issue.

 

5110

   

Pedestrian trail, sidewalks, etc.

 

5120

   

Bicycle and other nonmotorized paths

 

5130

   

Highways and roads

 
     

The subcategories provided for roads follow the Federal Highway Administration's (FHWA) functional road classification scheme. This scheme explains to Metropolitan Planning Organizations how they can meet specific reporting requirements of the Intermodal Surface Transportation Efficiency Act of 1991. Many local and state agencies use the same categories for their local planning applications. The two additional subcategories, local and alley, provided below can capture some additional local road types. Local roads may be private or unfunded roads. Alleys are commonly used in denser urban areas. There is no color scheme for roads in most local planning applications; they are left white or colored black. Depending on the scale of the map (regional or statewide maps), roads are may be shown as dark (usually black) lines. But ISTEA reporting requirements specify the following scheme for regional or statewide maps: Interstate highways — Blue solid line. Other Freeways and expressways — Brown solid line. Other principal arterials — Red solid line. Minor arterials — Green solid line

 

5131

     

Principal arterial — interstate

 

5132

     

Principal arterial — freeway and expressway

 

5133

     

Other principal arterial

 

5134

     

Minor arterial

 

5135

     

Major collector

 

5136

     

Minor collector

 

5137

     

Local road

 

5138

     

Alley

 

5139

     

Other nonclassified road

 

5140

   

Highway bridges and tunnels

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify this distinction. This category may be applicable when individual segments of roads are classified. For many local land-use applications, this linear facility (along with the right-of-way) may appear as a road segment. As local databases improve their accuracy, this category will increasingly become significant.

 

5150

   

Railroads, including monorails, etc.

 

5160

   

Waterways

 

5200

 

Automobile parking facilities

 

5210

   

Surface parking, open

 

5220

   

Surface parking, covered

 

5230

   

Multistoried parking structure with ramps

 

5240

   

Underground parking structure with ramps

 

5250

   

Rooftop parking facility

 

5300

 

Bus stop shelter

 

5400

 

Bus or truck maintenance facility

 

5500

 

Water transportation or marine related

 

5510

   

Port fuel facility

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

5511

     

Port fuel facility with anchored tanks, with back-up power

 

5512

     

Port fuel facility with anchored tanks, without back-up power

 

5513

     

Port fuel facility with unanchored tanks, with back-up power

 

5514

     

Port fuel facility with unanchored tanks, without back-up power

 

5515

     

Port fuel facility with buried tanks

 

5520

   

Pier, dock, wharf, or jetty

 

5530

   

Lighthouse

 

5540

   

Riverboats and other anchored facilities

 
     

Includes riverboats and barges used for casinos, entertainment, residential, or other purposes. For anchored parts of such facilities, include them in this category as well.

 

5550

   

Port storage or warehouse

 

5551

     

Stationary port handling equipment

 

5552

     

Rail mounted port handling equipment

 

5553

     

Port warehouses

 

5600

 

Air and space transportation facility

 

5610

   

Runway

 

5620

   

Airport maintenance and hangar facility

 

5630

   

Airport control tower

 

5640

   

Heliport facility

 

5650

   

Glideport, seaport, stolport, ultralight or baloonport facility

 

5700

 

Railroad facility

 

5710

   

Railroad switching facility

 

5720

   

Railroad sheds and other support structures

 
6000 Utility and other nonbuilding structures #858585
 

6100

   

Utility structures on right-of-way

 

6110

   

Electric lines, phone and cable lines, etc.

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6111

     

Distribution circuits with seismically designed components

 

6112

     

Distribution circuits with standard components

 

6120

   

Gas and fuel lines

 

6130

   

Water supply lines

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6131

     

Brittle pipelines

 

6132

     

Ductile pipelines

 

6140

   

Steam and air conditioning lines

 

6150

   

Irrigation channels

 

6160

   

Sewer and waste water lines

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6161

     

Brittle pipelines

 

6162

     

Ductile pipelines

 

6200

 

Water-supply-related facility

 

6210

   

Water supply pump station

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6211

     

Pumping plant with anchored equipment < 10 MGD

 

6212

     

Pumping plant with unanchored equipment < 10 MGD

 

6213

     

Pumping plant with anchored equipment > 10 MGD

 

6214

     

Pumping plant with unanchored equipment >10 MGD

 

6220

   

Dam

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

These categories also match the facility types specified in the Federal Geographic Data Committee's facility standards.

 

6221

     

Earth dam, arch

 

6222

     

Earth dam, multi-arch

 

6223

     

Buttress dam

 

6224

     

Gravity dam, rockfill

 

6225

     

Gravity dam, concrete

 

6226

     

Gravity dam, masonry

 

6227

     

Gravity dam, stone

 

6228

     

Gravity dam, timber crib

 

6230

   

Levee

 

6240

   

Culvert

 

6250

   

Water tank (elevated, at grade, underground)

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6251

     

On-ground anchored concrete tank

 

6252

     

On-ground unanchored concrete tank

 

6253

     

On-ground anchored steel tank

 

6254

     

On-ground unanchored steel tank

 

6255

     

Above ground steel tank

 

6256

     

On-ground wood tank

 

6257

     

Buried concrete tank

 

6260

   

Wells

 

6270

   

Water treatment and purification (WTP) facility

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6271

     

WTP with anchored components < 50 MGD

 

6272

     

WTP with unanchored components < 50 MGD

 

6273

     

WTP with anchored components 50-200 MGD

 

6274

     

WTP with unanchored components 50-200 MGD

 

6275

     

WTP with anchored components > 200 MGD

 

6276

     

WTP with unanchored components > 200 MGD

 

6280

   

Water reservoir

 

6290

   

Other irrigation facilities

 

6300

 

Sewer and waste-related facility

 

6310

   

Storage or pumping station facility

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6311

     

Lift stations with anchored components < 10 MGD

 

6312

     

Lift stations with unanchored components < 10 MGD

 

6313

     

Lift stations with anchored components > 10 MGD

 

6314

     

Lift stations with unanchored components > 10 MGD

 

6320

   

Landfill facility

 
     

Area fill and trench fill are two commonly known facility types. The area method is employed to fill a depleted quarry pit, a canyon, or a natural depression. After a day's worth of dumping, heavy tractors compact the solid wastes evenly, and cover the layer with dirt or other inert solid wastes. In canyon-type landfills, cover materials may come from scraping the walls. The final grade of such landfills is made even with the surrounding topography. In the trench fill method, dump trucks deposit waste in trenches dug out for this purpose. Heavy bulldozers in the trench compact and even the surface. At day's end, the bulldozers use dirt from the excavated material to cover the surface. Heavy front-end loaders, scrapers, and other equipment are used for digging trenches. When this type of landfill is completed, its grade is usually higher than the original grade. Because landfills try to keep the working surface as small as possible, they may not be visible in aerial pictures. Landfills are also synonymous with resource recovery facilities where some of the waste products are separated for recycling or additional treatment.

 

6330

   

Incinerator, composting, or similar facility

 
     

Mainly industrial in character, these facilities may sometimes be co-located with landfills and other solid waste operations.

 

6340

   

Hazardous waste storage facility

 
     

This single category should serve most planning applications. However, communities that have a variety of hazardous waste facilities and want to further delineate such facilities may do so by using the subcategories. But for the rest, this one category should suffice. All emergency preparedness plans require inventory of such facilities, and common applications include local traffic routing rules.

 

6341

     

High-level waste facility

 
       

These facilities handle the most hazardous of all waste products--fission products, which have high-intensity and penetrating radioactivity. The processes involved are heavily mechanized because humans cannot come into contact with these such materials.

 

6342

     

Transuranic waste facility

 
       

These facilities mainly bury the radioactive materials because they decay longer (half-life may be several thousand years) than the fission type. Equipment and structures reflect mining and large-scale industrial operations.

 

6343

     

Spent fuel facility

 
       

Normally these are co-located with nuclear reactor facilities and contain large water pools to store spent fuel. Such fuel is considered high-level waste, but many former nuclear reactor sites still function as spent-fuel facilities until the fuel can be disposed.

 

6344

     

Low-level waste facility

 
       

Such facilities collect, store, and process low-level radiation waste from industrial, commercial, and institutional sources. Their primary operation is to reduce the volume of radioactive material though filtration, evaporation, incineration, and compaction. The transportation and movement of wastes to these facilities are regulated and adequate emergency preparedness includes risks of pollution from such facilities.

 

6350

   

Sewer treatment plant

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6351

     

Wastewater Treatment Plant (WWTP) with anchored components < 50

 

6352

     

WWTP with unanchored components < 50 MGD

 

6353

     

WWTP with anchored components 50-200 MGD

 

6354

     

WWTP with unanchored components 50-200 MGD

 

6355

     

WWTP with anchored components > 200 MGD

 

6356

     

WWTP with unanchored components > 200 MGD

 

6400

 

Gas or electric power generation facility

 

6410

   

Gas storage and distribution facility

 

6420

   

Gas compressor stations

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6421

     

Gas compressor stations with anchored components

 

6422

     

Gas compressor stations with unanchored components

 

6430

   

Power generation plants

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6431

     

Power plants with anchored components < 100 MW

 

6432

     

Power plants with unanchored components < 100 MW

 

6433

     

Power plants with anchored components > 100 MW

 

6434

     

Power plants with unanchored components >100 MW

 

6440

   

Electric substation and distribution facility

 
     

Because these structures are of special concern for emergency management and other disaster recovery applications, they appear in a separate category with subcategories useful for emergency planners. Many state and federal emergency management applications (as described in the U.S. Federal Emergency Management Agency's HAZUS manual) specify these distinctions.

 

6441

     

Low-voltage (115 KV) substation with anchored components

 

6442

     

Low-voltage (115 KV) substation with unanchored components

 

6443

     

Medium-voltage (230 KV) substation with anchored components

 

6444

     

Medium-voltage (230 KV) substation with unanchored components

 

6445

     

High-voltage (500 KV) substation with anchored components

 

6446

     

High-voltage (500 KV) substation with unanchored components

 

6450

   

Geothermal facility

 

6460

   

Solar and other forms of energy facility

 
     

Includes windmills, solar panel farms, etc. Windmills are also known by other specialized terms, such as air mill, horizontal air mill, post mill, smock mill, and tower mill.

 

6500

 

Communication towers

 

6510

   

Radio, TV, or wireless transmitter

 

6520

   

Weather stations or transmitters

 

6600

 

Environmental monitoring station (air, soil, etc.)

 

6700

 

Sign or billboard

 

6900

 

Other miscellaneous structures

 

6910

   

Kiosks

 

6920

   

Roadside stand, pushcarts, etc.

 
     

Includes movable units that may or may not be permanently anchored.

 

6930

   

Highway rest stops and welcome centers

 

6940

   

Playground equipment

 
     

Includes swings, tot-lots, sand lots, and other playground equipment.

 

6950

   

Fountain, sculpture, etc.

 
     

Includes other aesthetic structures and streetscape elements, such as benches, planters, fountains, hydrants, flag pedestals, etc.

 

6970

   

Outdoor stage, bandstand, or similar structure

 
     

Either covered or uncovered, these structures serve as stages for performances in outdoor arenas and gathering places.

 
7000 Specialized military structures #FFC0CB
   

These are broad categories for military and defense establishments. It is a complex category that may include other structure types. Local planning applications are only concerned about this at a broad level, but base planners may want to add additional subcategories for some specialized operations, as shown for naval facilities. However, for normal land-use inventories necessary for base planning, apply categories other than "military installation" from this structure-type dimension. In combination with coding from the activity dimension, base planners can filter a variety of land-use characteristics suitable for base planning.

 

7100

 

Joint services facility

 

7200

 

Air Force facility

 

7300

 

Army and marine corps facility

 

7400

 

Naval facility

 

7410

   

Naval installation

 

7420

   

Weapons station

 

7430

   

Submarine base

 

7450

   

Training center

 

7460

   

Communications station

 

7470

   

Supply center

 

7480

   

Reserve station

 

7500

 

Armory building

 
   

Structures enclosing large enclosed space designed for military training. They may have incidental storage and office space within the main structure.

 
8000 Sheds, farm buildings, or agricultural facilities #228B22
   

Use this category for all agricultural structures. For tracking specialized farm and agricultural structures, use the subcategories. This broad category also includes lumber mills, maple sugaring facilities (sugar camp, sugar bush, etc.), agricultural terraces (to hold water and allow infiltration), waterways and stabilized paths (to direct runoff), sediment basins (to hold silt), and fencing (mainly to reduce livestock density).

 

8100

 

Grain silos and other storage structure for grains and agricultural products

 

8200

 

Livestock facility

 
   

This is a catch-all category for all livestock-related structures that serve horses, cattle, sheep, etc.

 

8210

   

Dairy facility

 
     

Includes barns, milking barns, milking parlors, etc.

 

8220

   

Poultry facility

 
     

Includes poultry houses for chickens, broilers, layer hens, etc.

 

8230

   

Cattle facility

 

8240

   

Stables and other equine-related facilities

 
     

Includes horse trot-tracks, and other horse training or veterinary facilities for horses.

 

8300

 

Animal feed operations facility

 
   

Although they may be integrated into a livestock facility, some are separately located.

 

8310

   

Confined feedlot facility

 
     

Although confined feedlots often refer to feeding operations for hogs, the agriculture industry has had a history of confined feedlot operations for a number of decades. Poultry feedlots, for example, have been confined for many years. Another term that is synonymous but with a different meaning is the US EPA and USDA definition for concentrated animal feeding operations (CAFO). This definition refers to feedlots greater than a certain capacity, in this case 1000 animal units. An animal unit is defined as the equivalent of one beef cow. Although definitions vary in zoning and other local regulations, the trend is to have some measurement unit based on impacts of effluent. Using this measure, a CAFO is any facility serving more than 1,000 cattle or 2,500 hogs or 55,000 turkeys, etc. The CAFO definition has other equivalents for other livestock types. If CAFOs have to be measured separate from confined feedlot facilities (i.e., that includes facilities with less than 1,000 animal units), create another subcategory or a special field to keep track of the CAFO units.

 

8400

 

Animal waste-handling facility

 

8410

   

In ground silos

 
     

Normally they may not be visible, but newer facilities have air vents and other gas recycling equipment co-located.

 

8420

   

Waste lagoons

 
     

These are open pits and low-lying areas where animal waste is drained from a feedlot or a confined facility. Although fast disappearing, some of these still do exist and the terms used to describe them vary.

 

8430

   

Concrete storage units, covered

 
     

Unlike other types of animal waste-handling facilities, these are more portable.

 

8440

   

Concrete storage units, uncovered

 
     

Unlike other types of animal waste-handling facilities, these are more portable.

 

8450

   

Composting facility

 
     

When such structures are part of a combined animal-waste handling facilities, use the higher-level Animal waste-handling facility category.

 

8500

 

Greenhouses

 
   

Rarely, but, also known as glasshouses, these are enclosed structures with or without climate control facilities for growing plants and vegetation under controlled environments.

 

8600

 

Hatcheries

 

8700

 

Kennels and other canine-related facilities

 

8800

 

Apiary and other related structures

 
   

This is a catch-all category all specialized structures and facilities, such as the following: apiary, which is a bee house or a place where beehives are stored; dovecote, a pigeon or doves house that is usually set above ground; a duckhouse (for ducks), falconry, a facility for housing, training, and breeding birds of prey; etc.

 

8900

 

Other farm and farming-related structures

 
   

Farm-related structures include barns and others, such as: ash house, a farm building to store ash or fertilizers; backhouse, a brewing house attached to a farm or farming structure; bark house, a farm building to store barks of trees; hay barns and chaff houses for storing hay and animal feed; boiling house, a structure where animal feed is prepared; chitting house, a shed to germinate and grow potatoes; laithe, a cow-house with crop storage space; hemmel, a shelter for farm animals with no stalls; etc.

 
9000 No Structure #FFFFFF
 

9100

   

Not applicable to this dimension

 
   

Use this code as a permanent code for those records that will never be classified in this dimension. It is normal for land-use databases to have records that may never be classified and left blank instead. But LBCS recommends that all records have a code because some computer applications may not be able handle blank entries (null values in database terminology).

 

9200

 

Unclassifiable structure

 
   

Use this category as a temporary placeholder for activities that cannot be grouped anywhere until the classification scheme is updated. Check the LBCS web site to see how others have dealt with such unique activities before revising the classification scheme.

 

9300

 

Subsurface structures

 
   

Use this category for activities that occur below the surface that are of no interest to the applications that will use this data set. Assigning one of the unknown categories may be inappropriate.

 

9900

 

To be determined

 
   

Use this code as a placeholder until an appropriate code can be assigned. It is normal for land-use databases to have records that may never be classified and left blank instead. But LBCS recommends that all records have a code because some computer applications may not be able handle blank entries (null values in database terminology). This code could also be used as the default value for data-entry work. The subcategories serve the same purpose for other coding levels.

 

9990

   

To be determined